Wireless charging device for electric vehicle

Abstract

The invention belongs to the technical field of charging devices, in particular to a wireless charging device for an electric vehicle. The wireless charging device comprises a bottom plate, a reinforcing plate, a first motor, lead screws, a side plate, a fixing plate, a sliding plate, electric push rods, an insulating plate, an output coil, a distance sensor, a toothed plate, a gear, a second motor, limit plates, a pressure plate, a first spring, a switch, a third motor, a drawstring, baffle plates, a second spring, a connecting plate and guide wheels. The wireless charging device for an electric vehicle facilitates adjusting of the position of the output coil through rotation of the lead screws and rotation of the gear, thus solving reduction of the charging efficiency, caused by the deviation during parking of the vehicle; the vertical movement of the output coil facilitates the output coil to approach the receiving coil on the vehicle, thus being beneficial to the improvement of theinduced current and improvement of the charging efficiency of the vehicle; and the movement of the output coil is facilitated by the movement of the baffle plate, and the inner portion of the groundcan be sealed when not in use, thereby effectively preventing the entry of dust and improving the service life of the output coil.

Description

technical field [0001] The invention belongs to the technical field of charging devices, in particular to a wireless charging device for electric vehicles. Background technique [0002] The electric vehicle wireless charging technology transmits electric energy to the electric energy pickup mechanism of the vehicle receiving end running within a certain range above the ground through the power supply guide rail buried under the ground in the form of a high-frequency alternating magnetic field, and then supplies power to the on-board energy storage device, which can The electric vehicle is equipped with a small number of battery packs to extend its cruising range, and at the same time, the power supply becomes safer and more convenient. The main parameters of dynamic wireless power supply technology include power transmission distance, power, efficiency, coupling mechanism lateral shift adaptability, electromagnetic compatibility, etc. Therefore, the development of high power...

AI Technical Summary

Problems solved by technology

[0003] At present, the wireless charging device for electric vehicles on the market is based on the principle that the buried coil group is energized and induced by the receiving coil installed inside the vehicle within a certain range to generate current to charge the vehicle, which solves the problem of existing electric vehicle charging. The problem of inconvenience has a good market. However, for wireless charging devices for electric vehicles, since the output coil and the receiving coil need to be close to each other to generate the maximum current when charging, it may be affected by the location of the vehicle when the vehicle stops. The deviation of the charging rate reduces the charging rate; and the long-term use of the output coil may reduce the service life due to the accumulation of dust, which affects the normal use

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